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3 years ago

Help me please 15 pts 3a + 5 = a- 3

Mathematics

2 answers:

Ierofanga [76]3 years ago

8 0

Answer:

a=-4

Step-by-step explanation:

put your like terms together and you'll get

2a+5=-3

then you subtract 5 from 5 and -3 and you get

2a=-8

lastly you divide 2 on both sides and you get

a=-4

alexandr1967 [171]3 years ago

5 0

Hello!

<em><u>Answer:</u></em>

<em><u>*The answer must have a negative sign.*</u></em>

Step-by-step explanation:

Distributive property: a(b+c)=ab+ac

First, you subtract by 5 from both sides of an equation.

$3a+5-5=a-3-5$

Then, simplify.

$3a=a-8$

Next, you subtract by a from both sides of an equation.

$3a-a=a-8-a$

Simplify.

$2a=-8$

Then you can also divide by 2 from both sides of an equation.

$\frac{2a}{2}=\frac{-8}{2}$

And finally, simplify and solve. You can also divide by the numbers.

$8/2=4$

$a=-4$

Hope this helps!

Thanks!

-Charlie

Have a great day!

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Bumek [7]

Answer:

Re-Write The Question

Step-by-step explanation:

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4 years ago

Which function has the domain x>-11

Marat540 [252]

<h2>Answer</h2>

$y=\sqrt{x+11} +5$

<h2>Explanation</h2>

Remember that the square root function is not defined, in the set of real numbers, for negatives values, so its radicand (the thing inside the square root) must be zero or bigger than zero. In other words, to find the domain of a square root function, you should set the thing inside the radical bigger or equal to zero and solve for x. Let's find the domain of each one of our functions:

For $y=\sqrt{x+11} +5$

The thing inside the square root is $x+11$ , so we are setting that bigger or equal than zero and solve for x to find the domain of the function:

$x+11\geq 0$

$x\geq -11$ domain

For $y=\sqrt{x-11} +5$

$x-11\geq 0$

$x\geq 11$ domain

For $y=\sqrt{x-5} -11$ and $y=\sqrt{x-5} +11$

$x+5\geq 0$

$x\geq -5$ domain

As you can see, the only one that has the domain $x\geq -11$ is the first choice.

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4 years ago

How to make an equation out of perimeter and area

Natasha2012 [34]

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4 years ago

Read 2 more answers

Which statement is true? the equation –3|2x 1.2| = –1 has no solution. the equation 3.5|6x – 2| = 3.5 has one solution. the equa

vampirchik [111]

The statement which is true for the provided reason is the equation 3.5|6x – 2| = 3.5 has one solution.

<h3>How to find one solution of equation?</h3>

If the equation is given a unique and single value of variable after solving then the equation is said one solution equation. Such equation gives exactly one solution.

The three types of solution of an equation are-

One solution-When the provides the singe value of the given variable, we get one or unique solution.
No solution-When the graph of equations is equal than it provides the no solution. When the value, does not equate for the expression, then the expression has no solution.
Infinite many solution-For the same line, the equation has the infinite many solutions.

The first equation given in the problem is,

$-3|2x+ 1.2| = -1$